US70329A - Renkt fatbits - Google Patents

Description

@Ww 'time anni @man HE URY FAYETTIJ, OF PORT CHESTER, NEW YORK. Letters Patent No. 70,329, dated October 29, 1867.

dige .Stimuli aferra tu in tten dition atmt mit making gaat ni the time.

TO ALL WHO IT MAY CONGERN:

Be it known that I, HENRY FAYETTE, of Port Chester, in the county of Westchester, and State of New York, have invented a new and useful Improvement in Cupola, Blast, or Smelting-Furnace; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the .accompanying drawings, and to the letters of reference' marked thereon, in which Figure l is a vertical section of a furnace constructed pursuant to my invention.

Figure 2Vis a plan view of the lower section of said furnace, divided in the lnc :e x, fig. 1; and

Figure v3 is a similar viewof the upper section, inverted'. p

A is the outer casing of the stock, and a, (colored,) a lining of lire-brick. B is an annular air-chamber surrounding the lower portion of the furnace. VC is the induction pipe, through which the blast is blown; C1, a central blast pipe, and C2 Czlside blastpipes, all branching from the induction-blast pipe C. D D is a blast pipe, in the form of an inverted are, connecting at its upper ends with the air-chamber B, and at its centre with the branch pipe D1. The lower end of the cent-ral blast pipe Cl is surrounded by a circular ange, e, and the upper end of the pipe Dl by a similar 4flange, f. In the space between said flanges e andf are four curved wings or air-guident, dividing said space -into four separate outlets or passage-ways for the air blown down through the pipe C1, or upward throughthe pipeD. The air-chamber B is also provided with four curved wings or aird guides, s, the form of which is shown in fig. 1. YThese wings extend clear across the bottom of the air-chamber, as shown in fig. 3, but do not extend -to. the upper portion of it. The blast pipes CZ enter the air-chamber at cc, and the ends of the curved blast pipe D enter it at ol UZ d. At the side where the spout is located said pipe D is shown in the drawing as branching, and entering the chamber on each side of the spout.

The blast blown in at induction pipe C will divide, one portion going down the central pipe G1, and the residue down theoutside pipes C2 C2 into the air-chamber B, and from the air-chamber a portion will be forced into the curved pipe D; thence up the central branch pipe D to the open space between the flanges e andj',`

where itwill meet the d'escending'cnrrent througlrpipeV Cl, `and tlie air from both pipes will be thrown out into the furnace by a whirling centrifugal motion imparted by the curved wings t. At the same time, a portion of the air forced into 'the chamber B-will be driyen from said chamber into the furnace, betweenV the curved wings s, with a whirling centripetal motion, imparted by said wings, so that the two currents of air, whirling in oppod site directions, will 'meet in the furnace. The air passing down the lcentral pipe C1, anddown the side pipes, will become highly heated before passingout of said` pipe Yinto the body of the furnace, and thus produce the effects of a hot blast.

For small furnaces, however, I propose to dispense with the central blast pipe C1 altogether, 'and blow the whole blast into the upperpart of the air chamber B, from which a portion-will be forced into the furnace between the curved wings c, and the residue down the curved pipe D, and thence up through the central pipe D', as above'described. In such case the blast will not be heated, but in all other respects the operation will be the same as above described.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A downward central blast through a pipe so located in the furnace that the air will become heated by the re of the furnace before being discharged into the same, substantially as shown and described.

2. A divided downward blast, one portion passing down a flue or pipe through the centre of the furnace, and the residue down side ilues,'so located that the air in all said fines will become heated in passing down the same, substantially as described.

3. An upward central blast from below they furnace, substantially as shown and described.

4. The combination of an upward and downward central blast, substantially as shown and described.

5. In combination with the airchamber B, I claim the curved'wings s, to conduct the blast into the furnace with a whirling centripetal motion, substantially as described. l

6. In combination with a central blast, whether from above or below, or both, I claim the ilanges or disks e andf, with the intervening curved wings t, to Vgive the blast from the centre a whirling centrifugal motion, as described'.

7. In combination with the air-chamber B and curved wings s, I claim a central blast from above or below, or both, with the curved wings t, all constructed and arranged substantially as and for the purposes described.

8. In combination with an annular air-chan1ber, as described, I claim passage-ways for a portion of the air to be forced therefrom into the circumference of, the furnace, and a curved or bent pipe or line for conducting another portion of the air from said chamber down below, and thence up through the bottom of the furnace,

centrally, as described.

HENRY FAYETTE.

Witnesses:

JOHN B. BARRETT, SETE M. ELDREDGE.

Images